So my question is: is this market still profitable for new projects?
Are you talking about cryptocurrency projects or what? You seem to be talking nonsense and contradict yourself in the first couple sentences. The world of business is forever changing, adapting and innovating new ideas every single day. Some businesses are very cheap to setup and run, requiring little overhead or costs - like people selling products on eBay or Etsy that they may have crafted themselves or bought from suppliers in bulk. Tech business often has fairly low barriers to entry, buy a domain and set your website up. Investors is such a broad term it is almost meaningless, almost everyone in most developed countries have pensions that own shares in many businesses via index funds. What evidence do you have of a "large increase" in new services or companies, because it is in constant flux but you've made a wild leap out of nowhere.